Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 78957a0a6b38417ec060a467ca7104a01ab7f6ffd6e599b142ed7fda0d5d6f7f:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^